Create an complex shape by rotating an ellipse. : Ellipse « 2D Graphics « Java Tutorial

1. Java Tutorial
2. 2D Graphics
3. Ellipse

import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.geom.AffineTransform;
import java.awt.geom.Ellipse2D;

import javax.swing.JFrame;
import javax.swing.JPanel;

public class RotateTransformed extends JPanel {

  public void paint(Graphics g) {
    Graphics2D g2 = (Graphics2D) g;

    Ellipse2D e = new Ellipse2D.Double(0, 0, 80, 130);

    for (double i = 0; i < 360; i += 5) {
      AffineTransform at = AffineTransform.getTranslateInstance(400 / 2, 400 / 2);
      at.rotate(Math.toRadians(i));
      g2.draw(at.createTransformedShape(e));
    }
  }

  public static void main(String[] args) {
    JFrame frame = new JFrame();
    frame.add(new RotateTransformed());
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setSize(400, 400);
    frame.setVisible(true);
  }
}

16.16.Ellipse
	16.16.1.	Create an ellipse, and then draws it several times at different rotations
	16.16.2.	Draw Ellipse2D.Float
	16.16.3.	Create an complex shape by rotating an ellipse.
	16.16.4.	Compares two ellipses and returns true if they are equal or both null.